User name Deur A.
Log entry time 16:03:11 on October 27,1998
Entry number 3850
8:10 Target ion chamber total dose:179 rad.
8:40 End |_ runs @ E=3.4 GeV, Ep=2.580 GeV, Theta=15.5 degree
Tot # of events 27.8 M
8:43 Compton polarimeter checked the charge asymmetry prior to change the pockel cell voltage : Aq=680 ppm.
took also a short run @ E=3.4 GeV, Ep=2.580 GeV, Theta=15.5 degree
8:55 change momentum to P=2.382 GeV/c. Problem with hadron arm magnets
lost communication with hadron arm magnet. Javier came, work and find the problem (bug in the code). He will fix the problem during accelerator check
9:00 NMR measurement: target polarisation (transverse): 33 %
9:25 Compton checked charge asymmetry after to have change the Pockel cell current: -37 +/-24 ppm
9:30 BCM linearity tests + BCM calibration. Ended at 11:50
12:00 NMR: target polarisation (longitudinal) 34 %
12:15 raster check 3*4 mm
12:20 begin \\ runs @ E=3.4 GeV, P=2.382 GeV/c
13:00 notice a light leak in the scintillators. Should not affect the data quality
13:00 pedestal run
15:15 back to // runs.